CLI Magic: For geek cred, try these one-liners


 
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Old 07-23-2008
CLI Magic: For geek cred, try these one-liners

07-23-2008 01:00 AM
In this context, a one-liner is a set of commands normally joined through a pipe (|). When joined by a pipe, the command on the left passes its output to the command on the right. Simple or complex, you can get useful results from a single line at the bash command prompt.



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App::Rad::Include(3pm)					User Contributed Perl Documentation				    App::Rad::Include(3pm)

NAME
App::Rad::Include - 'include' command extension for App::Rad VERSION
Version 0.01 SYNOPSIS
'include' is an opt-in command for you App::Rad programs (myapp.pl): use App::Rad qw(include); # add the 'include' command App::Rad->run(); and now you can turn your one-liners (e.g:) [user@host]$ perl -i -pe 's/ //' file.txt into nice scalable commands, simply replacing 'perl' for 'yourapp include <NAME>' [user@host]$ myapp.pl include dos2unix -i -pe 's/ //' and there you go, a brand new 'dos2unix' command: [user@host]$ myapp.pl dos2unix file.txt DESCRIPTION
This is an internal module for App::Rad and should not be used separately. Please refer to App::Rad for further documentation. INTERNAL METHODS
load Loads the module into App::Rad include Translates perl one-liner into self-contained command (subroutine) and adds it to your App::Rad program. DEPENDENCIES
o O, which is core in Perl 5.8. o B::Deparse, also core in 5.8. o Perl::Tidy (optional) AUTHOR
Breno G. de Oliveira, "<garu at cpan.org>" ACKNOWLEDGEMENTS
The one-liner conversion and beautification was *much* easened because of the nice "O" , "B::Deparse" and "Perl::Tidy" modules. So many thanks to Malcolm Beattie, Nicholas Clark, Stephen McCamant, Steve Hancock, and everyone that helped those projects. LICENSE AND COPYRIGHT
Copyright 2008 Breno G. de Oliveira "<garu at cpan.org>". All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic. DISCLAIMER OF WARRANTY
BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. perl v5.10.1 2008-12-21 App::Rad::Include(3pm)